Founders outside the United States usually assume the hard part of entering the US market is the product. It almost never is. The blockers are operational, they surface in the first enterprise deal, and every one of them takes longer to fix under deadline than it would have taken to build correctly.

Payments and billing

• US buyers expect card and ACH. Enterprise buyers expect invoicing with net-30 terms and a purchase order number on the invoice.
• Sales tax is per-state and depends on economic nexus rules that trigger on volume, not on incorporation. Automate it from day one — retroactive assessments are the expensive way to learn.
• Show prices in USD without conversion artefacts. A price that renders as $49.37 signals that the buyer is an afterthought.

Data residency and security posture

You will be asked where the data lives before you are asked what the product does. Hosting in a US region, a written subprocessor list, an incident response policy and a security page that a procurement team can read without emailing you are the minimum. SOC 2 comes later, but the questions arrive early — being able to answer them in a day rather than a month decides deals.

Contracts and liability

US contracts are more specific than most European ones: named governing state, defined liability caps, indemnification for IP claims, and a signed DPA. Have a standard MSA reviewed by a US-qualified lawyer before your first deal rather than negotiating your first one from scratch under time pressure.

Support expectations

Coverage during US business hours is not optional for a paid product. If your team is nine hours ahead, publish the hours you actually cover, guarantee a response time you can meet, and staff a genuine overlap window. Buyers forgive limited hours; they do not forgive discovering the limit during an outage.

Language and positioning

1. Have a native speaker rewrite the site. Translated marketing copy is detectable in one paragraph and it costs trust.
2. Use US date, number, address and phone formats throughout the product, not only on the marketing site.
3. State pricing publicly if you can. "Contact us" filters out the mid-market buyers who convert fastest.
4. Show US customer logos or, before you have them, US-relevant proof: uptime, security posture, named references.

Nobody rejects a product for being built abroad. They reject it for being visibly built for somewhere else.

None of this is a large engineering programme. It is a fortnight of unglamorous work that removes every excuse a US buyer has to choose the domestic alternative.